Planktic and benthic foraminifreral isotope data for ODP Site 207-1258
The mid-Cretaceous is widely considered the archetypal ice-free greenhouse interval in Earth history, with a thermal maximum around Cenomanian-Turonian boundary time (ca. 90 Ma). However, contemporaneous glaciations have been hypothesized based on sequence stratigraphic evidence for rapid sea-level...
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2007
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.723887 2024-09-15T18:23:34+00:00 Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 Moriya, Kazuyoshi Wilson, Paul A Friedrich, Oliver Erbacher, Jochen Kawahata, Hodaka MEDIAN LATITUDE: 9.433330 * MEDIAN LONGITUDE: -54.733033 * SOUTH-BOUND LATITUDE: 9.433330 * WEST-BOUND LONGITUDE: -54.733310 * NORTH-BOUND LATITUDE: 9.433330 * EAST-BOUND LONGITUDE: -54.732760 * DATE/TIME START: 2003-01-22T18:15:00 * DATE/TIME END: 2003-10-28T10:10:00 2007 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.723887 https://doi.org/10.1594/PANGAEA.723887 en eng PANGAEA Table DR1 - Age model used for correlation between sea-level change and oxygen isotopic data in figure 2 [dataset]. ftp://rock.geosociety.org/pub/reposit/2007/2007153.pdf https://doi.pangaea.de/10.1594/PANGAEA.723887 https://doi.org/10.1594/PANGAEA.723887 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Moriya, Kazuyoshi; Wilson, Paul A; Friedrich, Oliver; Erbacher, Jochen; Kawahata, Hodaka (2007): Testing for ice sheets during the mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise. Geology, 35(7), 615-618, https://doi.org/10.1130/G23589A.1 207-1258A 207-1258B 207-1258C DRILL Drilling/drill rig Joides Resolution Leg207 North Atlantic Ocean Ocean Drilling Program ODP dataset publication series 2007 ftpangaea https://doi.org/10.1594/PANGAEA.72388710.1130/G23589A.1 2024-08-21T00:02:25Z The mid-Cretaceous is widely considered the archetypal ice-free greenhouse interval in Earth history, with a thermal maximum around Cenomanian-Turonian boundary time (ca. 90 Ma). However, contemporaneous glaciations have been hypothesized based on sequence stratigraphic evidence for rapid sea-level oscillation and oxygen isotope excursions in records generated from carbonates of questionable preservation and/or of low resolution. We present new oxygen isotope records for the mid-Cenomanian Demerara Rise that are of much higher resolution than previously available, taken from both planktic and benthic foraminifers, and utilizing only extremely well preserved glassy foraminifers. Our records show no evidence of glaciation, calling into question the hypothesized ice sheets and rendering the origin of inferred rapid sea-level oscillations enigmatic. Simple mass-balance calculations demonstrate that this Cretaceous sea-level paradox is unlikely to be explained by hidden ice sheets existing below the limit of d18O detection. Other/Unknown Material North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-54.733310,-54.732760,9.433330,9.433330) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
207-1258A 207-1258B 207-1258C DRILL Drilling/drill rig Joides Resolution Leg207 North Atlantic Ocean Ocean Drilling Program ODP |
spellingShingle |
207-1258A 207-1258B 207-1258C DRILL Drilling/drill rig Joides Resolution Leg207 North Atlantic Ocean Ocean Drilling Program ODP Moriya, Kazuyoshi Wilson, Paul A Friedrich, Oliver Erbacher, Jochen Kawahata, Hodaka Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
topic_facet |
207-1258A 207-1258B 207-1258C DRILL Drilling/drill rig Joides Resolution Leg207 North Atlantic Ocean Ocean Drilling Program ODP |
description |
The mid-Cretaceous is widely considered the archetypal ice-free greenhouse interval in Earth history, with a thermal maximum around Cenomanian-Turonian boundary time (ca. 90 Ma). However, contemporaneous glaciations have been hypothesized based on sequence stratigraphic evidence for rapid sea-level oscillation and oxygen isotope excursions in records generated from carbonates of questionable preservation and/or of low resolution. We present new oxygen isotope records for the mid-Cenomanian Demerara Rise that are of much higher resolution than previously available, taken from both planktic and benthic foraminifers, and utilizing only extremely well preserved glassy foraminifers. Our records show no evidence of glaciation, calling into question the hypothesized ice sheets and rendering the origin of inferred rapid sea-level oscillations enigmatic. Simple mass-balance calculations demonstrate that this Cretaceous sea-level paradox is unlikely to be explained by hidden ice sheets existing below the limit of d18O detection. |
format |
Other/Unknown Material |
author |
Moriya, Kazuyoshi Wilson, Paul A Friedrich, Oliver Erbacher, Jochen Kawahata, Hodaka |
author_facet |
Moriya, Kazuyoshi Wilson, Paul A Friedrich, Oliver Erbacher, Jochen Kawahata, Hodaka |
author_sort |
Moriya, Kazuyoshi |
title |
Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
title_short |
Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
title_full |
Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
title_fullStr |
Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
title_full_unstemmed |
Planktic and benthic foraminifreral isotope data for ODP Site 207-1258 |
title_sort |
planktic and benthic foraminifreral isotope data for odp site 207-1258 |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.723887 https://doi.org/10.1594/PANGAEA.723887 |
op_coverage |
MEDIAN LATITUDE: 9.433330 * MEDIAN LONGITUDE: -54.733033 * SOUTH-BOUND LATITUDE: 9.433330 * WEST-BOUND LONGITUDE: -54.733310 * NORTH-BOUND LATITUDE: 9.433330 * EAST-BOUND LONGITUDE: -54.732760 * DATE/TIME START: 2003-01-22T18:15:00 * DATE/TIME END: 2003-10-28T10:10:00 |
long_lat |
ENVELOPE(-54.733310,-54.732760,9.433330,9.433330) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Moriya, Kazuyoshi; Wilson, Paul A; Friedrich, Oliver; Erbacher, Jochen; Kawahata, Hodaka (2007): Testing for ice sheets during the mid-Cretaceous greenhouse using glassy foraminiferal calcite from the mid-Cenomanian tropics on Demerara Rise. Geology, 35(7), 615-618, https://doi.org/10.1130/G23589A.1 |
op_relation |
Table DR1 - Age model used for correlation between sea-level change and oxygen isotopic data in figure 2 [dataset]. ftp://rock.geosociety.org/pub/reposit/2007/2007153.pdf https://doi.pangaea.de/10.1594/PANGAEA.723887 https://doi.org/10.1594/PANGAEA.723887 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.72388710.1130/G23589A.1 |
_version_ |
1810463792053616640 |